Anyone had any luck adding Debian 8 repositories to Kali 1.1.0a?

I have built my commercial pentest box (with enterprise licenses for Nexpose, MetaSploit, BurpSuite, and ExploitPack) on it, and I'm thinking I'd like to add the Debian 8 repositories for added functionality (I'd like to be able to do things like write my reports and such on the same box, but Libre Office isn't available on Kali!)

Wondering if anyone sees any downsides to that?

Cheers,
Soda